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Exam 3 Topics The third exam has 22 multiple choice questions worth 5 points each, and 3 short answer questions worth 15 points each in which you will be able to select one of two or three questions. The approximate topic breakdown is given below as some questions cover more than one topic. TOPIC Impacts of severe weather -- damages and death in US, trends in extreme weather events, trends in #deaths and damages, possible connection between climate change and increase in severe weather events, exposure to extreme temperatures, heat/cold waves Stratospheric ozone: loss of ozone (how, why, how much?); ozone hole; international actions; uv radiation; skin cancer; Ultraviolet radiation – why worry, where does it come from, effects on human body, factors that affect ultraviolet exposure. 500 mb height maps and interpretation of pattern in terms of temperature, winds, and precipitation chances Common weather terminology, longwaves, cyclogenesis, polar jet stream, Numerical weather forecasting and limitations, ensemble weather forecasting Climate vs Weather, definition climate change, interpretation of change, evidence for human-caused climate change Radiation (general laws and different types); Solar radiation input to Earth; Radiation emitted by Earth; Radiative equilibrium; Greenhouse effect; Greenhouse gases; Influence of clouds on both solar radiation input (visible) and Earth radiation out (infrared); Energy Budget Diagrams … absorption and reflection of radiation energy from the sun. Exchange of infrared radiation energy between surface and atmosphere. Radiation energy imbalances for surface and atmosphere … latent and sensible heat flux. Radiation imbalances at different latitudes and effects Increasing greenhouse gases; International action # multiple choice questions 2 # short answer questions 1 2 2 4 1 3 1 3 6 2 2